// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "cc/debug/rendering_stats.h"

namespace cc {

RenderingStats::TimeDeltaList::TimeDeltaList()
{
}

RenderingStats::TimeDeltaList::TimeDeltaList(const TimeDeltaList& other) = default;

RenderingStats::TimeDeltaList::~TimeDeltaList()
{
}

void RenderingStats::TimeDeltaList::Append(base::TimeDelta value)
{
    values.push_back(value);
}

void RenderingStats::TimeDeltaList::AddToTracedValue(
    const char* name,
    base::trace_event::TracedValue* list_value) const
{
    list_value->BeginArray(name);
    for (const auto& value : values) {
        list_value->AppendDouble(value.InMillisecondsF());
    }
    list_value->EndArray();
}

void RenderingStats::TimeDeltaList::Add(const TimeDeltaList& other)
{
    values.insert(values.end(), other.values.begin(), other.values.end());
}

base::TimeDelta RenderingStats::TimeDeltaList::GetLastTimeDelta() const
{
    return values.empty() ? base::TimeDelta() : values.back();
}

RenderingStats::RenderingStats()
    : frame_count(0)
    , visible_content_area(0)
    , approximated_visible_content_area(0)
    , checkerboarded_visible_content_area(0)
    , checkerboarded_no_recording_content_area(0)
    , checkerboarded_needs_raster_content_area(0)
{
}

RenderingStats::RenderingStats(const RenderingStats& other) = default;

RenderingStats::~RenderingStats()
{
}

std::unique_ptr<base::trace_event::ConvertableToTraceFormat>
RenderingStats::AsTraceableData() const
{
    std::unique_ptr<base::trace_event::TracedValue> record_data(
        new base::trace_event::TracedValue());
    record_data->SetInteger("frame_count", frame_count);
    record_data->SetInteger("visible_content_area", visible_content_area);
    record_data->SetInteger("approximated_visible_content_area",
        approximated_visible_content_area);
    record_data->SetInteger("checkerboarded_visible_content_area",
        checkerboarded_visible_content_area);
    record_data->SetInteger("checkerboarded_no_recording_content_area",
        checkerboarded_no_recording_content_area);
    record_data->SetInteger("checkerboarded_needs_raster_content_area",
        checkerboarded_needs_raster_content_area);
    draw_duration.AddToTracedValue("draw_duration_ms", record_data.get());

    draw_duration_estimate.AddToTracedValue("draw_duration_estimate_ms",
        record_data.get());

    begin_main_frame_to_commit_duration.AddToTracedValue(
        "begin_main_frame_to_commit_duration_ms", record_data.get());

    commit_to_activate_duration.AddToTracedValue("commit_to_activate_duration_ms",
        record_data.get());

    commit_to_activate_duration_estimate.AddToTracedValue(
        "commit_to_activate_duration_estimate_ms", record_data.get());
    return std::move(record_data);
}

void RenderingStats::Add(const RenderingStats& other)
{
    frame_count += other.frame_count;
    visible_content_area += other.visible_content_area;
    approximated_visible_content_area += other.approximated_visible_content_area;
    checkerboarded_visible_content_area += other.checkerboarded_visible_content_area;
    checkerboarded_no_recording_content_area += other.checkerboarded_no_recording_content_area;
    checkerboarded_needs_raster_content_area += other.checkerboarded_needs_raster_content_area;

    draw_duration.Add(other.draw_duration);
    draw_duration_estimate.Add(other.draw_duration_estimate);
    begin_main_frame_to_commit_duration.Add(
        other.begin_main_frame_to_commit_duration);
    commit_to_activate_duration.Add(other.commit_to_activate_duration);
    commit_to_activate_duration_estimate.Add(
        other.commit_to_activate_duration_estimate);
}

} // namespace cc
